When it needs to be installed on the glass doors and windows of bedrooms, shopping malls, hotels, offices and entertainment places, ventilators should be selected. When the place where the ventilation fan needs to be installed is equipped with a suspended ceiling, and there is an air outlet directly discharged to the outside on the suspended ceiling, you can choose a ceiling-mounted or pipe-type ventilation fan.
When the place where the exhaust fan is installed is equipped with a ceiling, and the outdoor exhaust pipe is pre-installed on the ceiling, the air should be exhausted by the high wind pressure of the pipe ventilator.
Extended data:
classify
1, decorative gypsum board, is a new type of interior decoration material, suitable for middle and high-grade decoration, with the characteristics of light weight, fire prevention, moisture resistance, easy processing and simple installation. In particular to a novel resin imitation facing waterproof gypsum board, the surface of which is covered with resin, and the decorative imitation pattern is vivid.
2. Gypsum hollow lath is a kind of hollow slab made of building gypsum as the main raw material and adding a proper amount of light filler or fiber material. This kind of board does not need paper and adhesive, and it does not need keel when it is installed. It is a kind of fast-developing optical plate. Mainly used for interior walls and partitions.
3. Fiber gypsum board Fiber gypsum board is made of building gypsum as the main raw material and mixed with appropriate fiber reinforced materials. The bending strength of this kind of board is higher than that of paper gypsum board, which can be used for interior walls and partitions, and can also replace wood to make furniture.